OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-f92db7-0): addr:4e:d5:26:74:6b:43
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-8a9138-0): addr:2e:87:57:a9:74:75
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:0e:aa:40:ba:2d:ec
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
